Montesquiou

{{Use dmy dates|date=August 2023}}

{{Infobox French commune

|name = Montesquiou

|commune status = Commune

|image = Montesquiou, Gers.JPG

|caption = A general view of Montesquiou

|image coat of arms = Blason ville fr Montesquiou (Gers).svg

|arrondissement = Mirande

|canton = Pardiac-Rivière-Basse

|INSEE = 32285

|postal code = 32320

|mayor = Étienne Verret{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|publisher=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=13 September 2022|language=fr}}

|term = 2020–2026

|intercommunality = Cœur d'Astarac en Gascogne

|coordinates = {{coord|43.5794|0.3297|format=dms|display=inline,title}}

|elevation m = 277

|elevation min m = 145

|elevation max m = 256

|area km2 = 46.8

|population = {{France metadata Wikidata|population_total}}

|population date = {{France metadata Wikidata|population_as_of}}

|population footnotes = {{France metadata Wikidata|population_footnotes}}

}}

Montesquiou ({{IPA|fr|mɔ̃tɛskju}}; Gascon: Montesquiu) is a commune in the Gers department, Southwestern France. It is the historic seat of the Montesquiou family.